/**
 * Copyright (c) 2020-2025, JGraph Holdings Ltd
 * Copyright (c) 2020-2025, draw.io AG
 */
/**
 * Sample plugin.
 */
Draw.loadPlugin(function(ui) {

	var graph = ui.editor.graph;
	
	function updateOverlays(cell)
	{
		var tooltip = cell.getAttribute('tooltip');
		
		if (tooltip != null && tooltip.length > 0)
		{
			var overlays = graph.getCellOverlays(cell);
			
			if (overlays == null)
			{
				// Creates a new overlay with an image
				var overlay = new mxCellOverlay(
					new mxImage('', 48, 48),
					null, mxConstants.ALIGN_RIGHT, mxConstants.ALIGN_TOP, null, 'default');
				
				// Sets the overlay for the cell in the graph
				graph.addCellOverlay(cell, overlay);
			}
		}
		else
		{
			graph.removeCellOverlays(cell);
		}
	};
	
	function refresh()
	{
		var cells = graph.model.cells;
		
		for (var id in cells)
		{
			updateOverlays(cells[id]);
		}
	};
	
	graph.addListener(mxEvent.SIZE, refresh);
	refresh();
});
